Happy Halloween "Somewhat Stretchy" Bracelet

cults3d

As a special treat for grandkids, kids, parents, and grandparents to enjoy during Halloween Trick Or Treating, I created this flexible Happy Halloween Bracelet that slips easily over the hand and onto the wrist. The inside diameters of the included files for the bracelet are sized for most of our grandkids at 58mm, and I simply scaled these files up for older grandkids, kids, parents, and grandparents (my wife and I!) using the Ultimaker Cura 4.2.0 scale function prior to 3D printing with values of 1.1 through 1.3 across the X, Y plane. I've included both single extrusion "Happy Halloween Bracelet.stl" and dual extrusion "Happy Halloween Bracelet.3mf" files for the bracelet, as well as individual black "Happy Halloween Bracelet, Black.stl" and orange "Happy Halloween Bracelet, Orange.stl" files used for dual extrusion if you prefer to merge them yourself before printing. I printed our bracelets at a .15mm layer height with 20% infill and no supports in both PLA and Ultimaker Tough PLA for grandkid-resistant performance. To achieve cleaner dual extrusion prints with finer lettering details, I enabled the Ultimaker Cura 4.2.0 "Prime Tower" and "Ooze Shield" options, which resulted in excellent outcomes (I've included a photograph of a dual extrusion print of the bracelet with these features enabled). Even with these options enabled, Ultimaker Cura 4.2.0 reported using only .85m of bracelet color and .33m of letter color, making this bracelet a "remnant print" that can be printed with minimal remaining material. Without these features enabled, Ultimaker Cura 4.2.0 reported using only .62m of bracelet color and .18m of letter color. Given the simplicity of this model, I hope I haven't forgotten anything this time; please let me know if you notice any omissions. I designed this model using Autodesk Fusion360, sliced it with Ultimaker Cura 4.2.0, and printed it in PLA on an Ultimaker 2+ Extended, as well as in PLA / Tough PLA on an Ultimaker 3+ Extended and an Ultimaker S5.